1.6 KiB
| title | chunk | source | category | tags | date_saved | instance |
|---|---|---|---|---|---|---|
| Auditory agnosia | 5/5 | https://en.wikipedia.org/wiki/Auditory_agnosia | reference | science, encyclopedia | 2026-05-05T07:26:21.081452+00:00 | kb-cron |
== Neurological mechanism == Auditory agnosia (with the exception of non-verbal auditory agnosia and amusia) is strongly dependent on damage to both hemispheres. The order of hemispheric damage is irrelevant to manifestation of symptoms, and years could take between the damage of the first hemisphere and the second hemisphere (after which the symptoms suddenly emerge). A study that compared lesion locations, reported that in all cases with bilateral hemispheric damage, at least in one side the lesion included Heschl's gyrus or its underlying white matter. A rare insight into the etiology of this disorder was reported in a study of an auditory agnosia patient with damage to the brainstem, instead of cortex. fMRI scanning of the patient revealed weak activation of the anterior Heschl's gyrus (area R) and anterior superior temporal gyrus. These brain areas are part of the auditory 'what' pathway, and are known from both human and monkey research to participate in the recognition of sounds.
== See also == Amusia Aphasia Apraxia Auditory verbal agnosia
== References ==
== Further reading == Polster MR, Rose SB (February 1998). "Disorders of auditory processing: evidence for modularity in audition" (PDF). Cortex; A Journal Devoted to the Study of the Nervous System and Behavior. 34 (1): 47–65. doi:10.1016/S0010-9452(08)70736-6. PMID 9533993. S2CID 2717085.
== External links == Psychnet Definition